4.—(1) For the purposes of the Act, establishments of the following kinds are independent clinics—
(a)a walk-in centre, in which one or more medical practitioners provide services of a kind which, if provided in pursuance of the NHS Act, would be provided as general medical services under Part II of that Act; and
(b)a surgery or consulting room in which a medical practitioner who provides no services in pursuance of the NHS Act provides medical services of any kind (including psychiatric treatment) otherwise than under arrangements made on behalf of the patients by their employer or another person.
(2) Where two or more medical practitioners use different parts of the same premises as a surgery or consulting room, or use the same surgery or consulting room at different times, each of the medical practitioners shall be regarded as carrying on a separate independent clinic unless they are in practice together.